HDF5 WRF-ROMS I/O Module

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NCSA is currently developing an implementation of Weather Research Forcast model (WRF) I/O module that reads and writes HDF5 datasets. The module will be available to anyone using WRF as a new option for I/O. We believe that the high performance features of HDF5 will definitely help the WRF user community.

The WRF-HDF5 module is being developed as part of the NSF funded MEAD project at NCSA. The module implements the standard WRF/IO interface, so it can be used with any WRF application. All the I/O features of the WRF-I/O netCDF module are supported.

In the second year of this project, HDF5 I/O for the Regional Ocean Model System (ROMS) will be investigated. In related activity, we investigated using parallel netCDF with ROMS.

Technical Information

MuQun Yang et al, Parallel I/O Performance Study and Optimizations with HDF5, A Scientific Data Package, 12th IBM System Scientific User Group(ScicoMP), July 20th, 2006[pdf][ppt]

MuQun Yang, Performance Study of Parallel NetCDF4 in ROMS, June 30th, 2006[pdf]

MuQun Yang, Robert E. McGrath, and Mike Folk, Performance Study of Parallel NetCDF in ROMS, August 27,2004[pdf]

MuQun Yang, Robert E. McGrath, and Mike Folk, Performance Study of HDF5-WRF IO modules, WRF Workshop, June 26, 2004 [pdf] [Download Code]

MuQun Yang, Mike Folk, Robert E. McGrath, Investigation of Parallel NetCDF with ROMS, May 4, 2004 [pdf] [Download Code]

MuQun Yang, Mike Folk, WRF-HDF5 IO performance report, October 1, 2003 [pdf]

MuQun Yang, Robert E. McGrath, and Mike Folk.
An HDF5 WRF I/O Module, Poster for HDF-EOS Workshop, 23-25 Sep., 2003 [ ppt ] [ pdf ]

        MuQun Yang, Robert E. McGrath, and Mike Folk.
        A High performance I/O Module: the HDF5 WRF I/O Module, Fourth WRF Users' Workshop, 12-13 June, 2003 [ ppt ] [ pdf ]

        MuQun Yang, Robert E. McGrath, and Mike Folk.
       A High performance I/O Module: the HDF5 WRF I/O Module [ pdf ]

        MuQun Yang, Mike Folk, Investigation of parallel IO module in WRF, May 8, 2003 [ pdf ]

Slides: HDF5 WRF I/O module report (June 2, 2003) [ppt] [pdf]

Slides: Using HDF5 in WRF [ppt] [pdf]

Slides: Schematic WRF-HDF5 file structure [ppt] [pdf]

To Obtain:

Parallel HDF5 WRF-IO Module for WRF 2.0.3.1

The prototype parallel HDF5 IO module is available as part of the WRF source code. Please see:

http://www.mmm.ucar.edu/wrf/users/user_main.html

Please read the instructions for building and installing the parallel HDF5 WRF-IO module for WRF 2.0.

Configuration Hints for using WRF-HDF5 IO modules

Please check here.

HDF5 WRF-IO Modules for WRF 1.3

Prototype versions of the sequential and parallel HDF5 WRF-IO modules are available from:

ftp://ftp.hdfgroup.uiuc.edu/pub/outgoing/wrf-hdf5-modules

Please read the instructions for building and installing, along with sample configuration files.

Information about Parallel IO Module for ROMS

An implementation of the ROMS NetCDF history file writer, modified to use parallel netCDF.

ftp://ftp.hdfgroup.uiuc.edu/pub/outgoing/roms-pnetcdf

Please read the README file.

Sample HDF5-WRF output

Some WRF-Parallel HDF5 IO files can be found under ftp://ftp.hdfgroup.uiuc.edu/pub/outgoing/wrf-hdf5-modules/example_files/par/
Some WRF-Sequential HDF5 IO files can be found under ftp://ftp.hdfgroup.uiuc.edu/pub/outgoing/wrf-hdf5-modules/example_files/seq/

The National Center for Supercomputing Applications
University of Illinois at Urbana-Champaign

Last Modified: May 24, 2007